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imx: ddr: imx8m: Move selfref_en after DDR scrub
When doing DDR scrub, the DDR may enter into self refresh if the selfref_en is enabled before DDR scrub. This will cause scrub can't complete that SBRSTAT.scrub_done won't be set. Since the selfref_en can be programmed during the course of normal operation, move it after DDR scrub Signed-off-by: Ye Li <ye.li@nxp.com> Acked-by: Peng Fan <peng.fan@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
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1 changed files with 3 additions and 2 deletions
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@ -235,8 +235,6 @@ int ddr_init(struct dram_timing_info *dram_timing)
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/* Step26: Set back register in Step4 to the original values if desired */
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reg32_write(DDRC_RFSHCTL3(0), 0x0000000);
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/* enable selfref_en by default */
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setbits_le32(DDRC_PWRCTL(0), 0x1);
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/* enable port 0 */
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reg32_write(DDRC_PCTRL_0(0), 0x00000001);
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@ -244,6 +242,9 @@ int ddr_init(struct dram_timing_info *dram_timing)
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board_dram_ecc_scrub();
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/* enable selfref_en by default */
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setbits_le32(DDRC_PWRCTL(0), 0x1);
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/* save the dram timing config into memory */
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dram_config_save(dram_timing, CONFIG_SAVED_DRAM_TIMING_BASE);
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